Overview

Dataset Statistics

Number of Variables 15
Number of Rows 151
Missing Cells 0
Missing Cells (%) 0.0%
Duplicate Rows 0
Duplicate Rows (%) 0.0%
Total Size in Memory 17.8 KB
Average Row Size in Memory 120.8 B
Variable Types
  • Numerical: 6
  • Categorical: 9

Dataset Insights

id is uniformly distributed Uniform
id is skewed Skewed
trestbps is skewed Skewed
oldpeak is skewed Skewed
sex has constant length 1 Constant Length
cp has constant length 1 Constant Length
fbs has constant length 1 Constant Length
restecg has constant length 1 Constant Length
exang has constant length 1 Constant Length
slope has constant length 1 Constant Length
ca has constant length 1 Constant Length
thal has constant length 1 Constant Length
target has constant length 1 Constant Length
oldpeak has 53 (35.1%) zeros Zeros
  • 1
  • 2

Variables

id

numerical

Approximate Distinct Count 151
Approximate Unique (%) 100.0%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 2.4 KB
Mean 76
Minimum 1
Maximum 151
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • id is uniformly distributed

Quantile Statistics

Minimum 1
5-th Percentile 8.5
Q1 38.5
Median 76
Q3 113.5
95-th Percentile 143.5
Maximum 151
Range 150
IQR 75

Descriptive Statistics

Mean 76
Standard Deviation 43.734
Variance 1912.6667
Sum 11476
Skewness 0
Kurtosis -1.2001
Coefficient of Variation 0.5754
  • id is not normally distributed (p-value 4.226514069652413e-25)

age

numerical

Approximate Distinct Count 37
Approximate Unique (%) 24.5%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 2.4 KB
Mean 54.4967
Minimum 34
Maximum 77
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • age is skewed left (γ1 = -0.1942)

Quantile Statistics

Minimum 34
5-th Percentile 40
Q1 48.5
Median 54
Q3 61
95-th Percentile 67.5
Maximum 77
Range 43
IQR 12.5

Descriptive Statistics

Mean 54.4967
Standard Deviation 8.9046
Variance 79.2917
Sum 8229
Skewness -0.1942
Kurtosis -0.5463
Coefficient of Variation 0.1634

sex

categorical

Approximate Distinct Count 2
Approximate Unique (%) 1.3%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB
  • The largest value (1) is over 2.15 times larger than the second largest value (0)

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 1
2nd row 1
3rd row 1
4th row 0
5th row 1

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (1, 0) take over 50.0%
  • The largest value (1) is over 2.15 times larger than the second largest value (0)
  • sex has words of constant length

cp

categorical

Approximate Distinct Count 4
Approximate Unique (%) 2.6%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 2
2nd row 3
3rd row 1
4th row 0
5th row 1

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (0, 2) take over 50.0%
  • cp has words of constant length

trestbps

numerical

Approximate Distinct Count 37
Approximate Unique (%) 24.5%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 2.4 KB
Mean 132.0331
Minimum 94
Maximum 192
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • trestbps is skewed right (γ1 = 0.8043)

Quantile Statistics

Minimum 94
5-th Percentile 110
Q1 120
Median 130
Q3 140
95-th Percentile 167
Maximum 192
Range 98
IQR 20

Descriptive Statistics

Mean 132.0331
Standard Deviation 17.9099
Variance 320.7656
Sum 19937
Skewness 0.8043
Kurtosis 0.743
Coefficient of Variation 0.1356
  • trestbps is not normally distributed (p-value 8.950766017891563e-10)
  • trestbps has 7 outliers

chol

numerical

Approximate Distinct Count 106
Approximate Unique (%) 70.2%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 2.4 KB
Mean 244.5298
Minimum 131
Maximum 564
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • chol is skewed right (γ1 = 1.5262)

Quantile Statistics

Minimum 131
5-th Percentile 173
Q1 208
Median 239
Q3 270
95-th Percentile 326.5
Maximum 564
Range 433
IQR 62

Descriptive Statistics

Mean 244.5298
Standard Deviation 56.3322
Variance 3173.3174
Sum 36924
Skewness 1.5262
Kurtosis 6.191
Coefficient of Variation 0.2304
  • chol is not normally distributed (p-value 0.00032207323927278077)
  • chol has 3 outliers

fbs

categorical

Approximate Distinct Count 2
Approximate Unique (%) 1.3%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB
  • The largest value (0) is over 5.29 times larger than the second largest value (1)

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 1
2nd row 1
3rd row 0
4th row 0
5th row 0

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (0, 1) take over 50.0%
  • The largest value (0) is over 5.29 times larger than the second largest value (1)
  • fbs has words of constant length

restecg

categorical

Approximate Distinct Count 3
Approximate Unique (%) 2.0%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 0
2nd row 1
3rd row 0
4th row 0
5th row 1

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (0, 1) take over 50.0%
  • restecg has words of constant length

thalach

numerical

Approximate Distinct Count 71
Approximate Unique (%) 47.0%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 2.4 KB
Mean 150.6291
Minimum 88
Maximum 195
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • thalach is skewed left (γ1 = -0.5651)

Quantile Statistics

Minimum 88
5-th Percentile 107
Q1 136.5
Median 155
Q3 168
95-th Percentile 182
Maximum 195
Range 107
IQR 31.5

Descriptive Statistics

Mean 150.6291
Standard Deviation 23.4665
Variance 550.6749
Sum 22745
Skewness -0.5651
Kurtosis -0.2542
Coefficient of Variation 0.1558
  • thalach has 1 outliers

exang

categorical

Approximate Distinct Count 2
Approximate Unique (%) 1.3%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB
  • The largest value (0) is over 2.08 times larger than the second largest value (1)

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 0
2nd row 0
3rd row 0
4th row 1
5th row 0

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (0, 1) take over 50.0%
  • The largest value (0) is over 2.08 times larger than the second largest value (1)
  • exang has words of constant length

oldpeak

numerical

Approximate Distinct Count 30
Approximate Unique (%) 19.9%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 2.4 KB
Mean 0.9768
Minimum 0
Maximum 5.6
Zeros 53
Zeros (%) 35.1%
Negatives 0
Negatives (%) 0.0%
  • oldpeak is skewed right (γ1 = 1.2269)

Quantile Statistics

Minimum 0
5-th Percentile 0
Q1 0
Median 0.8
Q3 1.6
95-th Percentile 3
Maximum 5.6
Range 5.6
IQR 1.6

Descriptive Statistics

Mean 0.9768
Standard Deviation 1.086
Variance 1.1794
Sum 147.5
Skewness 1.2269
Kurtosis 1.4816
Coefficient of Variation 1.1118
  • oldpeak is not normally distributed (p-value 3.098010747850839e-22)
  • oldpeak has 1 outliers

slope

categorical

Approximate Distinct Count 3
Approximate Unique (%) 2.0%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 0
2nd row 1
3rd row 2
4th row 1
5th row 2

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (2, 1) take over 50.0%
  • slope has words of constant length

ca

categorical

Approximate Distinct Count 4
Approximate Unique (%) 2.6%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB
  • The largest value (0) is over 3.06 times larger than the second largest value (1)

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 0
2nd row 0
3rd row 1
4th row 0
5th row 0

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (0, 1) take over 50.0%
  • The largest value (0) is over 3.06 times larger than the second largest value (1)
  • ca has words of constant length

thal

categorical

Approximate Distinct Count 4
Approximate Unique (%) 2.6%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 2
2nd row 3
3rd row 3
4th row 2
5th row 2

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (2, 3) take over 50.0%
  • thal has words of constant length

target

categorical

Approximate Distinct Count 2
Approximate Unique (%) 1.3%
Missing 0
Missing (%) 0.0%
Memory Size 9.7 KB

Length

Mean 1
Standard Deviation 0
Median 1
Minimum 1
Maximum 1

Sample

1st row 1
2nd row 1
3rd row 0
4th row 1
5th row 1

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 151
  • The top 2 categories (1, 0) take over 50.0%
  • target has words of constant length

Interactions

Correlations

Missing Values